release 0.3.4
Mirror handles noRoot (vendor) lists nicely.
Merge pull request #15 from DavidSouther/feature/14/suppress_vendor_miss

Mirror handles noRoot (vendor) lists nicely.

Closes #14
Improved vendor ordering check.
Merge pull request #16 from DavidSouther/feature/14/suppress_vendor_miss

Improved vendor ordering check.